EGR bypass in a Corolla with the 2.0D-4D turbodiesel, not related to the old 2C. Just bypassed the cooling fluid lines and blanked the valve body, but didn't delete it. Had to clean the intake manifold which had lots of soot deposits starting to clog. A water+meth injection is still considered to come, and might still keep NOx in standard levels or even reduce them more than the EGR could ever do. Plus, the combustion will get enhanced not just due to the absence of EGR but because of the water+meth too.